Answers

Subtract 45/70 from 50/80

50/80 - 45/70 is -1/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 70 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   50/80 = 50 × 7/80 × 7 = 350/560
3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
   45/70 = 45 × 8/70 × 8 = 360/560
4. Subtract the two like fractions:
   350/560 - 360/560 = 350 - 360/560 = -10/560
5. After reducing the fraction, the answer is -1/56

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